Armrest for a working vehicle



FIG. 1 is a front perspective view of an armrest for a working vehicle according to the design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view;

FIG. 7 is top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a reference view showing a possible use of the design.

The dashed broken lines illustrate environmental matter that forms no part of the claimed design. The dot-dash broken lines illustrate unclaimed boundaries that form no part of the claimed design. 

CLAIM The ornamental design for an armrest for a working vehicle, as shown and described. 